Saw-set.



Patented Aug. l4, I900. P. c. KEMPER & w. E. BAUER.

SAW s r-:1. (Application filed (No Model.)

ra'rns PATENT Fries.

rn'rnr. o. KEMPER AND WILLIAM EDWARD RADER, or ooLUMBIA,

' MISSOURI. I

S AW 3 ET SPECIFICATION forming part of Letters Patent No. 655,714,dated August 1-4, 1960. Application filed May 3,1900. Serial no. 15,273.on ma.)

T0 aZZ whom it may concern).-

Be it known that we, PETER C. KEMPER and WILLIAM EDWARD RADER, citizensof the United States, residing at Columbia, in the county of Boone andState of Missouri, have invented certain new and useful Improvements inSaw-Sets; and we do hereby declare the following to be a full, clear,and exact de scription of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention has relation to the class of tools designed for settingand swaging saws, the purpose being the provision of an implement forthe purpose aforesaid easily operable, adjustable to saws having teethof different sizes, uniform in operation, so as to set the teeth withprecision and insure an even out and avoid jerky movements when the sawis in service, efiective, durable, and not susceptible to easyderangement.

For a full description of the invention and the merits thereof and alsoto acquire aknowledge of the details of construction of the means foreffecting the result reference is to be had to the appended descriptionand drawings hereto attached.

While the essential and characteristic features of the invention arenecessarily susceptible of modification, still the preferred embodimentof the invention is illustrated in the accompanying drawings, in whichFigure 1 is a perspective view of a saw-set embodying the vital featuresof the invention. Fig. 2 is a perspective view of the bed or base of thetool stripped of the operating parts. Fig. 3 is a longitudinal section,parts being broken away. Fig. 4 is a detail perspective view of thepivotal end of the setting-lever. Fig. 5 is a detail view in elevationshowing anvils of different thicknesses. Fig. 6 is a detail View showingdifferent forms of guidestrips.

Oorresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The bed or base 1 of the implementis provided with an extension 2,either formed with or secured thereto, and has a depression 3 andtransversely-aimed seats 4 and 5, the latter being approximately ofwedge form in cross section, so as to retain in place guide-strips 6,slipped endwise therein. The depression 3 is located inside of the lineof the seats at and 5, and a tapering depression 7 extends therefromtoward the outer end of the bed. A spindle 8 projects from the inner endof the part 2 parallel with the base 1 and with the seats 4 and 5. Thisspindle overhangs the tapering depression 7 and forms a support for thesetting-lever 9, which is held upon the said spindle by a washer 10 anda pin 11, the latter passing transversely through an opening formed inthe said spindle. The projection 2 is formed in its inner side with agroove 12 in communication with the seat 4:, so as to receive aguide-strip 13 for a purpose similar to the strip 6. It is not necessaryto have the combined seat 4 and 12 of wedge form in transverse section,since the strip 13 is held in place against vertical and lateral.movement by the overhanging wall of the groove 12.

The guide-strips 6 and 13 are preferably of wood, so asto, obviatedulling the points of thesaw-teeth "after being sharpened. The portionof theguide-strips projecting above the plane of; the base 1 is adaptedto have the face against which the teeth of the saw bear disposed tocome nearer to or farther away from the plane of the inner side of theextension 2,according to the length of the saw-teeth, whereby the samecan be properly set according to the character of the saw. Theguidestrips are made interchangeable and the upper portion of theseveral strips varies in thickness, whereby provision is had to enablethe teeth to be projected a greater or less distance beneath the camportion of the setting-lever. The strips being of wood can be readilyreplaced when worn at a trifling cost, and the user can vary therelative position of the engaging face of the strips by cutting the sameaway should it be required to have the teeth of the saw to be setproject beneath the cam portion of the setting-lever a greater distancethan primarily allowed for by the strips in position and at hand.

The anvil 14 is a block of hardened steel or chilled iron and is of asize to snugly fit within the recess 3, in which it is held by friction.The inner upper face of the anvil is beveled, as shown at 15, to form aseat for the teeth as set. The height of the block and the relativeinclination of the part will depend upon the character of saw to be setor swaged. In order to adapt the tool for operation upon different kindsof saws, anvils 14, of different thicknesses and degree of bevels 15,will be provided, so that the proper one may be selected and placed inposition as required. In order that a tightly-fitting anvil may bedislodged when required, an opening 16 is formed in the base and isdisposed about centrally of the recess 3 and is designed to receive aninstrument of the character of a punch when the anvil is to bedisplaced. The punch or like imple1nent (not shown)is passed through theopening 16, and its outer end is struck a smart blow bya hammer orthelike, thereby unseating the anvil and enabling a selectedon'e to beplaced in position.

The setting-lever 9 is pivotally mounted upon the spindle 8 and itspivotal end is provided'with a series of cam portions 17 and 18,

of different widths, according to the size of tooth to be acted upon.For coarse teeththe wide faced cam portion 18 is utilized and for finerteeth the narrow-faced cam portion 17 is reught into working relationwith the anvil 14. In order to enable the different cam portions to bebrought into proper position for cooperation with the anvil, thesettinglever is mounted upon the spindle Sin such a manner asto bereversed, whereby one or the other of the cam portions may be positionedso as to lieadj'acent to the bed 1 when the free end of thesetting-lever is in contact therewith.

Theba'se or bed 1 is preferably of oblong form and comprises acontracted portion constitutin g a shank and a widened portion forming.the headand receiving the workin g parts, shell as the projection 2,anvil l4, and guidestrips' 6 and 13'. The depression 7 is locatedopposite the projection 2 and provides clearance for the cam portions ofthe setting-lever when the tool is in operation.

Having thus described the invention, what is claimed as new is 1. In asaw-set, a base having a seat in its upper face of wedge form incross-section,'and provided with swaging mechanism, and a guide havingits base portion removably fitted in the said seat and having its upperportion projecting above the plane of the base, substantially asdescribed.

2. In a saw-set, a base having a seat in its upper face of wedge form incross-section, and provided with swaging mechanism, and a guidehavingits base portion removably fitted in the said seat and having itsupper portion projecting above the plane of the base, and cut away onits'inner or rear face, as and for the purpose described. r

3. In a saw-set, a base having an anvil, and a setting-lever reversiblyfulcrumed uponthe base and provided with a plurality of different-sizedcam portions to be broughtinto action by differently positioning thesaid lever, substantially as specified.

4. The herein-described saw-set, comprising a base having a recess,transverselyalined seats at the sides of the recess, and having aprojection at one side of the recess, an anvil removably fitted in thesaid recess, guide-strips detachably fitted in the said seats, and alever reversibly fulcrum ed to the said projection and having aplurality of camfaces to be brought into active operation by differentlypositioning the lever, substantially as specified. I

In testimony whereof we affix our signatures in presence of twowitnesses.

PETER C. KEMPER. WILLIAM EDWARD RADER. Witnesses:

J. A. PHILLIPS, H. E. WRIGHT.

